Vulcanizer.



E. GRUNZ.

VULCANIZER.

APPLlcMxoN man APR. |4v. 1917.

Paten'd Nov. 6, 1917.

UNITED STATES PATENT EEICE.

ERNEST GRUNZ, OF WHEELING, WEST VIRGINIA, ASSIGNOR TO D. EARLE ROGERS, 0F WHEELING, WEST VIRGINIA.

VULCANIZER.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed April 14, 1917. Serial No. 161,951.

To oZZ whom it may concern.'

Be it known that I, ERNEST GRUNZ, a citizen of the United States of America, and resident of Wheeling, county of Ohio, and State of West Virginia, have invented certain new and useful Improvements in Vulcanizers, of which the following is a specilication.

This invention relates broadly to vulcanizing devices, and specifically to a vulcanizer designed for vulcanizing pneumatic tubes.

The primary object of the invention is to provide a simple, inexpensive and eilicient vulcanizing device whereby patches maybe readily affixed to pneumatic tire tubes and the like and which requires in its operation no special skill on the part of the operator.

A further object of the invention is to provide a device of the character described yembodying a heating element designed as a pressure plate or clamp associated with means whereby the requisite clamping pressure may be applied to a patch instantly, or without resort to the tedious adjustment ordinarily required in the operation of such devices.

A still further object within the contemplation of the invention is to provide a vulcanizer which admits of the use interchangeably of pressure plates of different sizes and shapes in conformity with the requirements of the patches which are to be applied.

With these and other objects in view, the invention resides in the features of construction, arrangement of lparts and combinations of elements which will hereinafter be fully described, reference being had to the accompanying drawings, in which- Figure 1 is a vertical sectionpof the invention' lig. 2 is a top. plan view of the same; an Y Fig. 3 is a longitudinal section of containing pressure plate.

Referring to said drawings, in which like designating characters distinguish like parts throughout the several views- 1 indicates a base which has fixed thereto, or, preferably, formed integral therewith, a laterally disposed yoke-like arm 2 which is curved or inclined upward into overhanging relation to said base. Said arm is terminated by a head 3 which is disposed over a fuel said base at a suitable distance from the latter. Extending vertically through said head is a smooth unthreaded bore t in which is loosely received a vertically movable plunger 6 having a collar or nut 7 removably mounted thereon at or adjacent to its lower end and having a head 8 upon its upper end. Said plunger is screw threaded at least throughout a portion of its length, and normally disposed in seated interengaging relation with the threads of said plunger is the correspondingly toothed face of a dog 9 which is disposed within a suitable recess 10 provided in said head 3. Said dog has a stem 11 which is movable in or through a socket or aperture 12 provided at the outer end of said recess 10. A- lsuitably located lever, as 13, isv associated with said dog whereby the latter may be retracted or withdrawn from interengaging relation with said plunger 6 against the tension onfa suitably disposed spring 14 which normally tends to maintain said dog seated.

l- Y vertical socket 15 is provided in the lower end of the plunger, and loosely received in said socket is the upper :end of an upright stem 16 having its lower end mounted upon a horizontally disposed bar 17 which has its opposite ends mounted in upright ears 18 carried by a shallow cup-like container 19 designed for receiving a combustible fuel whereby it is heated. Said container is also designed as the vulcanizing element, being adapted to seat under pressure upon the patch which is being applied, and to impart the requisite heat for vulcan- .izing such patch to the rubber tube or other article being repaired.

As is obvious, the to be repaired is placed flatwise upon the base 1 in such positionvthat the patch to be applied directly underlies the container` 19. Said container may vbe 4of circular, oval, or other suitable shape, and may be of any desired size. A plurality' of containers of different sizes and shapes'is preferably employed, theV samel being interchangeable to permit ofthe use `of that .size and shape tube or other article which most nearly'corresponds to the patch. f

ceived within. the'socket f15 in the plunger, f.

thus not only rendering it withdrawable, as for facilitating interchangeability, but also permitting the container to be swung to any desired position, as from the full line position to the dotted line position shown in Fig. 2, to correspond with the position occupied by the patch.

{aving been properly positioned, as aforesaid, the container is forced into clamping or firmly seated relation to the patch by forcibly pressing the plunger downward into pressure-exerting relation to the stem 16, this being accomplished by hand against the tension of a coil spring 2O which is disposed between the heads 3 and 8 and which tends to normally hold said plunger elevated. Vhen the plunger is thrust downward, the threads thereof ride over the teeth of the yieldable dog 9, but the engagement of said teeth with said threads is suiiiciently close and their grip sufliciently rm that the plunger will be retained in adjusted position against chance displacement. As is obvious, when such is necessary, a slight additional adjustment for increasing the pressure of the container upon the patch may be obtained by giving the plunger a partial forward turn after it has been thrust downward in the manner above described. l/Vhen it is desired to elevate the plunger, the dog is withdrawn or retracted by means of the lever 18, thus permitting the spring 20 to accomplish the elevation. As is apparent, the collar or nut 7 limits the extent of elevation of the plunger.

The container 19 is adapted for retaining any caloric fuel, as gasolene, a fuse-like disk or wafer of combustible material, vor the like.

Instead of a threaded plunger, may employ a plunger having rack-bar form with its teeth disposed on that side adjacent to the position occupied by the spring- 'pressed dog 9.

From the foregoing it will be lmanifest that the invention is notl only simple, inexpensive and durable in its construction, but that it is quickly adjustable and possesses numerous other marked advantages. It will be understood, however, that various minor changes inthe form and construction of parts may be resorted to without departing from the general spirit or scope of the invention as defined in the appended 'claims'.

l/Vhat is claimed is:

l. A vulcanizing device comprising a base, a support overhanging said base ata suitable height, said'support having a vertical unth'readedV bore therethrough, a springpressed dog disposed laterally of said bore and! normally projected into the latter, a plunger vertically movable in said bore and having means engageable with said dog whereby the lplunger is normally maintained Leashes in adjusted position, a stein slidably associated with the lower end of said plunger, and a fuel container connected to said stem and laterally adjustable with respect thereto.

2. A. vulcanizing device comprising a base, a support over-hanging said base at a suitable height, said support having a vertical unthreaded bore therethrough, a springpressed dog disposed laterally of said bore and normally projected into the latter, a plunger vertically movable in said bore and having teeth adapted to be engaged by said deg whereby said plunger is normally maintained against elevating movement, and a fue-l container detachably associated with the lower end of said plunger.

3. A vulcanizing device comprising a base, a support overhanging said base at a suitable height, said support having a vertical unthreaded bore therethrough, a springpressed dog disposed laterally of said bore and normally projected into the latter, a plunger vertically movable in said bore and having' teeth adapted to be engaged by said dog whereby said plunger is normally maintained against elevating movement, said plunger having a socket in its lower end, a vertical stem having its upper end received in said socket, and a fuel container attached to said stem.

e. A vulcanizing device comprising a base, a support overhanging said base at a suitable height, said support having a vertical unthreadedA bore therethrough, a springpressed dog disposed laterally of said bore and nori'nally projected into the latter, a plunger vertically movable in said bore and having teeth adapted to be engaged `by said dog whereby said plunger is normally maintained against elevating: movement, said plunger having a socket in its lower end, an upright stem having its upper end slidably received in said socket, and a fuel container pivotally connected to said stem.

5. A vulcanizing device comprising a base, a support overhanging said base at a suitable height, said support having a vertical unthreaded bore therethrough, a springpressed dog disposed laterally of'said bore and normally projected into the latter, a plunger vertically movable in said bore and having teeth adapted to be engaged bysaid dog whereby said plunger is normally mailitained against elevating movement, said plunger having a socket in its lower end, an upright stem having itsupper end slidably received in said socket, a fuel container, and a horizontal bar overlying and supported by said container, said bar having the lower end of said Stem disposed thereon.

6. .A vulcanizing device comprising a base, a support overhanging said base at a suitable height, said support having a vertical unthreaded bore therethrough, a springpressed dog disposed laterally of said bore und normally projected into the latter, a said container, said bar having the lower end l@ plunger vertically movable in said bore and of said stem loosely mounted thereon.

having teeth adapted to be engaged by said In testimony whereof, I aflix my signature dog whereby said plunger is normally mainin presence of two subscribing witnesses. tained against elevating movement, said plunger having a socket in its lower end, an ERNEST GRUNZ' upright stem having its upper end slidably Witnesses: received in said socket, a fuel container, and D. EARLE ROGERS, a horizontal bar overlying and supported by H. E. DUNLAP.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

